I have a hard time recommending it because if they come up totally wrinkled and lightly faded with marbling...you would blame me ;)
IMO you should soak in the tub with hottest tab water, move the jeans in the water with your hands (after the water isn't too hot anymore) and let them hang dry. Then you will see if they shrank enough. If not, a second soak or the machine wash are still an option.
But yeah, don't spin it.

Looking to buy S710xx, my regular waist size is like 30, but a 33 levis 511 fits me snug. What size should I get? 5'8 145lbs

I'm the same size as you, get a 30 like odb said

im only 5'8, is it a good idea to get them hemmed down to a 32 or 34 first?

Imo I think you'd be alright if you get em hemmed to a 32...I'm 5'8 as well and honestly a 30 inseam is perfect for us w/o cuffing....just cold soak it if you want to keep it at 32
34 inseam doesnt really look right on 5'8 and under

Looking to buy S710xx, my regular waist size is like 30, but a 33 levis 511 fits me snug. What size should I get? 5'8 145lbs

I'm the same size as you, get a 30 like odb said

im only 5'8, is it a good idea to get them hemmed down to a 32 or 34 first?

Imo I think you'd be alright if you get em hemmed to a 32...I'm 5'8 as well and honestly a 30 inseam is perfect for us w/o cuffing....just cold soak it if you want to keep it at 32
34 inseam doesnt really look right on 5'8 and under

I'd say get them hemmed to 34, you don't want to have them shrink up to a point that u cant go back to. If ur getting from BiG just send them an email with your height n they'll be able to tell you wat a good hem length would be

Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt ≈ @NegronusPrime